Dental filling.



PATENTED MAY 1, 1906.

P. O. G. T. A. OSIUS. DENTAL, FILLING.

APPLICATION FILED MAY 15, 1905.

In. .E.

Znncntup 3y gutornzy v I I yzmzziiw zz witnesses: I 77 Em. .C. (UAW.

UNITED STATES PATENT OFFICE.

FREDERICK G. G. T. A. OSIUS, OF MUSKEGON, MICHIGAN.

DENTAL FILLING.

Specification of Letters Patent.

Patented May 1, 1906.

Application filed May 15, 1905. Serial No. 260,533.

. new and useful dental filling material herein described and claimed,and illustrated with accompanying drawings, in which Figure 1 is a viewof a tooth having my improved fillin in section. Fig. 2 is a view of amass of the filling.

In the drawings represents the tooth, and I) my improved filling.

It is well understood that many defective teeth on account of theirfragile or weak condition cannot be filled with a hard gold fillinghammered into place in the customary wellknown manner.

The object of my invention is to provide a soft dental fillingcontaining gold which may be burnished'and polished, so as to give theappearance of an ordinary gold filling when the process of burnishing iscompleted, which may be used in filling weak or fragile teeth, and whichmay be ap lied in much less time and at less expense t an by hammeringor ressing in a gold filling, the filling, however, l iaving theappearance, as above observed, of an ordinary gold filling when theroce'ss of its-insertion is completed, except t at possibly my improvedfi ling when burnished and polished has a somewhat duller finish thanwhen a hard old filling is hammered into place and polis ed. p

The dental fillin which I employ may be composed of the ollowingelements. The proportions herein named have been found to givesatisfactory results, although the proportions may be varied withoutdeparture from my invention. In making said filling I employ, say, twopennyweights of precipitated gold pulverized to a very fine powder. Withthe recipitated gold I mix, say, one

pennyweig t of a suitable cementas, for.

example, a zinc cement, which may consist of oxyphosphate of zinc,phosphoric acid, or

oxychlorid of zinc, or other cement. To the above may preferably beadded one grain of French rouge, although the rouge might be omittedwithout departing from my invention. These substances are well mixedtogether, as by grinding the same together, and when thoroughly mixedconstitute a powder ready for use or ready to be put upon the market inpowdered or other form.

It will be apparent that the metal is suspended in and indifferent tothe 'cement'i. e.

the metal and the cement do not form a chemical union.

While I have described gold in particular as mixed with a suitabledental cement, I would have it understood also that my inventioncontemplates the mixing of any other metal suitable for dental purposeswith such a cement.

In the process of filling a tooth when the tooth has been treated in thecustomary manner a suitable amount of this dental filling is then mixedwith an ordinary cement liquid until the mixture is of the consistencyof thick paste, which is then applied to the cavity already prepared.After sa1d filling has been sufliciently hardened it is then burnishedand polished, whereby a gold surface is brought out upon its exterior.

This dental filling is especially adapted for such cavities as cannot befilled with gold by the methods heretofore commonly employed for reasonsobvious to those skilled in the art.

This fillin when burnished and polished has not the 0 j ectionableappearance of ordinary gold fillings.

What I claim as my invention is 1. .A soft dental filling materialcomposed of pulverized metal and dental cement mixed together, the metalbeing suspended in and indifierent to the cement, substantially asdescribed. I

2. A soft dental filling material composed of precipitated gold and adental cement mixed together, the metal being suspended in andindifferent to the cement, substantially as described.

3. A dental filling material com osed of metal and a zinc cement mixedtoget er, substantially as described.

4. The process herein described of producing a dental filling for teethcapable of being specification in the presence of twosubscriblournisliled 233d piolisheccl1 ionsisfiiling ofdmixingWitnesses. 1n wit 0 pu venze o a e pow er, a cenent a iid reducing themixed compound FREDERICK OSIUS 5 to a powder the metal being suspendedin and Witnesses:

indiflerent to the cement. M. OsIUs,

In testimony whereof I have signed this THEODORE F. A. OsIUs.

